摘要
上覆岩层中导气裂隙的发育情况直接影响着邻近层瓦斯在采动破裂煤岩体中的动态储运及涌出规律。在探讨上覆岩层中导气裂隙形成机理和延伸规律的基础上,实测研究了阳泉集团石港煤矿15101综放工作面导气裂隙的发展规律并计算得出正常生产条件下导气裂隙带的发育高度,结合综放面瓦斯涌出的实测数据,研究了采动影响下导气裂隙的发育与邻近层瓦斯涌出之间的动态耦合关系,为本煤层以及邻近层瓦斯抽采和治理技术的选择及优化提供依据。
The growth of gas transmit fracture in overburden affect directly the dynamic storage and emission laws of gas in adjacent layer in the process of rupturing the rock.Based on the formation mechanism and extension laws of air transmit fracture in overburden,this paper studied the development laws of gas transmit fracture in Shigang 15101 caving face of Yangquan Coal Group and calculated the growth height of gas transmit fracture under normal production conditions.Combined with measured gas emission data of caving face,the paper studied the dynamic coupling relationship between gas transmit fracture growth and gas emission of adjacent layer under the influence of mining and provided the selection and optimization for gas extraction and management technology in the coal seam and the adjacent layer.
出处
《煤矿安全》
CAS
北大核心
2012年第1期5-8,共4页
Safety in Coal Mines
基金
国家自然科学基金重点资助项目(50834005)
国际科技合作资助项目(2008DFB70100)
关键词
综放工作面
导气裂隙
邻近层瓦斯涌出
caving face
gas transmits fracture
gas emission of adjacent layer
